安装了java,并设置好了环境变量,在命令提示符窗口输入C:\>javac后可以运行.建立一个记事本文档,输入
class A
{
  public void new{
    system.out.println("A"）
  }
}
文档名为A.java放在D:\.然后在命令提示符
C:\>D:

D:\>javac A.java
但他提示我找不到文件?为什么

"Thee one is system,it should be system."What meaning is this?I look forword to your advances.And is there different between ")" and ")"?

Thank you.But why don't javac still find this file when I transform "new" into "mean"?

I only transform “新建 文本文档” into "A.java".Wrong?What should I do?Request for your comment.

Thank you very much.I have been successfull becouse of your advance.